CN105406021A - Liquid injecting device and liquid injecting method - Google Patents
Liquid injecting device and liquid injecting method Download PDFInfo
- Publication number
- CN105406021A CN105406021A CN201510965972.9A CN201510965972A CN105406021A CN 105406021 A CN105406021 A CN 105406021A CN 201510965972 A CN201510965972 A CN 201510965972A CN 105406021 A CN105406021 A CN 105406021A
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- CN
- China
- Prior art keywords
- fluid injection
- liquid injecting
- cup cavity
- liquid
- blocked shot
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention belongs to the technique field of lithium ion battery production equipment, and especially relates to a liquid injecting device. The liquid injecting device comprises liquid injecting cup cavities, an upper fixing plate, a lower fixing plate, liquid injecting nozzles, liquid injecting openings, first blocking rods, second blocking rods, a first drive assembly and a second drive assembly; the upper end faces and lower end faces of the liquid injecting cup cavities are in close contact with the upper fixing plate and the lower fixing plate; the liquid injecting openings are formed in the upper fixing plate and communicate with the liquid injecting cup cavities; the liquid injecting nozzles are located under the lower fixing plate and communicate with the liquid injecting cup cavities; a through hole communicated with the liquid injecting cup cavities is formed in the upper fixing plate; an air tap is connected to the end of the through hole. According to the invention, the liquid injecting principle of the existing liquid injecting device of lithium ion batteries is improved, and existing single liquid injection is changed into reciprocating small-amplitude repeated liquid injection so as to prevent residual air bubbles at dead angles in the battery core, therefore the qualified rate of the liquid injection process of the battery cores is greatly improved and quality of the battery cores in the liquid injection process is improved without influencing the overall productivity.
Description
Technical field
The invention belongs to lithium ion battery production equipment technical field, particularly relate to a kind of priming device and electrolyte filling method.
Background technology
In lithium ion battery manufacturing, need to carry out fluid injection to battery battery core, allow battery core fully contact and Electolyte-absorptive, then just can carry out next step packaging operation.And in injection process, having a small amount of bubble formation, the residual meeting of bubble has a strong impact on the fail safe of the quality of battery core own and finishing operations.
In existing lithium ion battery liquid injection process, electrolyte injects disposal vacuum after battery core inside from fluid injection cup and extracts raffinate, then directly enters subsequent processing.Due to existing lithium ion battery liquid injection machine liquid injection system in the course of the work, fluid injection work is completed by disposable injection electrolyte, disposable extraction excess electrolyte, bubble remaining in battery core often can not be removed, especially at the bubble of battery core dead angle part by this fluid injection mode completely.
Existing lithium ion battery liquid injection machine the reasons for the above problems are: liquid injection process principle exists limitation, and disposable fluid injection and extraction are difficult to get rid of remaining bubble completely.
In view of this, necessaryly provide a kind of electrolyte filling method and priming device, to solve the fluid injection gas bubbles left problem that lithium ion battery cell occurs in injection process, thus the product quality in battery core fluid injection stage can be promoted to a great extent.
Summary of the invention
The object of the invention is to: for the deficiencies in the prior art, and a kind of priming device is provided, to solve the fluid injection gas bubbles left problem that lithium ion battery cell occurs in injection process, thus the product quality in battery core fluid injection stage can be promoted to a great extent.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of priming device, comprise fluid injection cup cavity, upper mounted plate, bottom plate, liquid injecting mouth, liquid injection port, first blocked shot, second blocked shot, first driven unit and the second driven unit, the upper surface of described fluid injection cup cavity and lower surface respectively with fixed plate and described bottom plate close contact, described liquid injection port is arranged on fixed plate and described liquid injection port communicates with described fluid injection cup cavity, described liquid injecting mouth is positioned at the below of described bottom plate and described liquid injecting mouth communicates with described fluid injection cup cavity, described first driven unit can drive described first blocked shot to insert in described liquid injection port, described second driven unit can drive described second blocked shot to insert in described liquid injecting mouth, fixed plate is provided with the through hole communicated with described fluid injection cup cavity, the end of described through hole is connected with valve.
One as priming device of the present invention is improved, and described first driven unit is set to the first motor, and described first blocked shot is arranged on the first slide block.
One as priming device of the present invention is improved, described first driven unit is fixed on mounting panel, the two ends of described first driven unit are provided with guide pillar, described mounting panel is slidably connected to described guide pillar, described first slide block is fixedly installed on the end of described guide pillar, described mounting panel is also fixed on upper mounted plate by fixed leg, and the output shaft of described first driven unit is arranged near described first slide block.
One as priming device of the present invention is improved, and the top of described guide pillar is provided with fixed block, and described fixed block is positioned at the top of described first driven unit.
One as priming device of the present invention is improved, and described second driven unit comprises ball screw and the second motor, and the output shaft of described second motor is connected by belt with described ball screw.
One as priming device of the present invention is improved, fixed plate is provided with guide rail, described ball screw is connected with pushing block, second slide block is connected on described guide rail by sliding shoe slidably, described pushing block is positioned at the top of described sliding shoe, and described second blocked shot is arranged at the below of described second slide block.
One as priming device of the present invention is improved, and fixed plate is provided with the through hole that can pass for described second blocked shot.
The invention also discloses a kind of electrolyte filling method, comprise the following steps:
Step one, blocks liquid injecting mouth with the second blocked shot, injects the electrolyte in fluid injection cup cavity, when fluid injection cup cavity arrives fluid injection station, makes the second blocked shot leave liquid injecting mouth, thus completes the storage of electrolyte in fluid injection cup cavity;
Step 2, malleation is passed in fluid injection cup cavity, make in the electrolyte press-in battery core in fluid injection cup cavity, when the intrusion of electrolyte reaches set point, liquid injection port is blocked with the first blocked shot, again vacuum pumping is carried out to described fluid injection cup cavity, electrolyte unnecessary in described fluid injection cup cavity is extracted out;
Step 3, after exhausting unnecessary electrolyte, the second blocked shot is made to block liquid injecting mouth, and make described first blocked shot leave described liquid injection port, remove the vacuum state in described fluid injection cup cavity, make described fluid injection cup cavity recover normal pressure, then make the second blocked shot leave liquid injecting mouth, electrolyte is automatically injected battery core inside under differential pressure action;
Step 4, repetition step 2 and step 3 are at least one times.
Relative to prior art, the priming device of the present invention for existing lithium ion battery fluid injection principle improves, changed into by existing single fluid injection and reciprocatingly repeat fluid injection by a small margin, bubble is remained to remove battery core inner dead space, thus greatly can promote battery core fluid injection operation qualification rate, under the prerequisite not affecting overall throughput, improve the battery core quality of fluid injection operation.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 to Fig. 5 is the schematic diagram of electrolyte filling method of the present invention.
Wherein:
1-fluid injection cup cavity, 2-upper mounted plate, 4-liquid injecting mouth, 5-liquid injection port, 6-first blocked shot, 7-second blocked shot, 8-first driven unit, 9-second driven unit, 91-ball screw, 92-second motor, 93-belt, 10-valve, 11-first slide block, 12-mounting panel, 13-guide pillar, 14-fixed leg, 15-fixed block, 16-guide rail, 18-second slide block, 19-sliding shoe.
Embodiment
As shown in Figure 1, a kind of priming device provided by the invention, comprise fluid injection cup cavity 1, upper mounted plate 2, bottom plate (not shown), liquid injecting mouth 4, liquid injection port 5, first blocked shot 6, second blocked shot 7, first driven unit 8 and the second driven unit 9, wherein, fluid injection cup cavity 1 is for storing the electrolyte injected from outside fluid injection part, upper mounted plate 2 and bottom plate are for realizing the fixing of fluid injection cup cavity 1, bottom plate is provided with the through hole communicated with liquid injecting mouth 4, and the lower end of liquid cup cavity 1 embeds in this through hole, the upper surface of fluid injection cup cavity 1 and lower surface respectively with upper mounted plate 2 and bottom plate close contact, liquid injection port 5 is arranged on upper mounted plate 2 and liquid injection port 5 communicates with fluid injection cup cavity 1, when liquid injection port 5 is in opening-wide state, can make to recover normal pressure in fluid injection cup cavity 1, liquid injecting mouth 4 is positioned at the below of bottom plate and liquid injecting mouth 4 communicates with fluid injection cup cavity 1, electrolyte in fluid injection cup cavity 1 is added dropwise in battery core by liquid injecting mouth 4, first driven unit 8 can drive the first blocked shot 6 to insert in liquid injection port 5, thus block liquid injection port 5, when shutoff removed by needs, first driven unit 8 drives the first blocked shot 6 to leave liquid injection port 5, second driven unit 9 can drive the second blocked shot 7 to insert in liquid injecting mouth 4, thus block liquid injecting mouth 4, when removing shutoff, second driven unit 9 drives the second blocked shot 7 to leave liquid injecting mouth 4, upper mounted plate 2 is provided with the through hole communicated with fluid injection cup cavity 1, the end of through hole is connected with valve 10, can pass into malleation from valve 10 to upper mounted plate 2, and then pass into malleation to fluid injection cup cavity 1, so can by the electrolyte press-in battery core in fluid injection cup cavity 1.
First driven unit 8 is set to the first motor, first blocked shot 6 is arranged on the first slide block 11, first driven unit 8 can drive the first slide block 11 to move towards the direction of upper mounted plate 2, the first blocked shot 6 is made to insert in liquid injection port 5, when need remove shutoff, first driven unit 8 can drive the first slide block 11 to move towards the direction away from upper mounted plate 2, makes the first blocked shot 6 leave liquid injection port 5.
First driven unit 8 is fixed on mounting panel 12, the two ends of the first driven unit 8 are provided with guide pillar 13, mounting panel 12 is slidably connected to guide pillar 13, first slide block 11 is fixedly installed on the end of guide pillar 13, mounting panel 12 is also fixed on upper mounted plate 2 by fixed leg 14, and the output shaft of the first driven unit 8 is arranged near the first slide block 11.First driven unit 8 drives the first slide block 11 to move downward, and then moves downward with the first blocked shot 6 and guide pillar 13.
The top of guide pillar 13 is provided with fixed block 15, and fixed block 15 is positioned at the top of the first driven unit 8.When the first slide block 11 drops to certain position, fixed block 15 can withstand the first driven unit 8, thus can prevent the first slide block 11 from declining too much.
The output shaft that second driven unit 9 comprises ball screw 91 and the second motor 92, second motor 92 is connected by belt 93 with ball screw 91.Ball screw 91 can convert rotary motion to linear movement, and it has the features such as high accuracy, invertibity and high efficiency.So, the rotary motion of the second motor 92 converts upper and lower rectilinear motion to by ball screw 91.
Upper mounted plate 2 is provided with guide rail 16, ball screw 91 is connected with pushing block (not shown), second slide block 18 is connected on guide rail 16 by sliding shoe 19 slidably, and pushing block is positioned at the top of sliding shoe 19, and the second blocked shot 7 is arranged at the below of the second slide block 18.Ball screw 91 promotes pushing block and moves up and down, thus the second slide block 18 can be slided up and down on track 16, and then drives the second blocked shot 7 insert or depart from liquid injecting mouth 4.
Upper mounted plate 2 is provided with the through hole that can pass for the second blocked shot 7, thus can with the second blocked shot 7 shutoff liquid injecting mouth 4.
The invention also discloses a kind of electrolyte filling method, comprise the following steps:
Step one, second motor 92 starts, ball screw 91 is with pushing block slide downward on track 16, make the second blocked shot 7 block liquid injecting mouth 4, inject the electrolyte in fluid injection cup cavity 1, when fluid injection cup cavity 1 arrives fluid injection station, second motor 92 rotates backward, ball screw 91, with pushing block upward sliding on track 16, makes the second blocked shot 7 leave liquid injecting mouth 4, thus completes the storage of electrolyte in fluid injection cup cavity 1;
Step 2, (now battery core inside is negative pressure to fluid injection cup cavity 1, to pass into malleation from valve 10, all there is more bubble in its surrounding dead angle and inside), make in the electrolyte press-in battery core in fluid injection cup cavity 1 (as shown in Figure 2) under the effect of pressure reduction, when the intrusion of electrolyte reaches set point, first driven unit 8 drives the first slide block 11 slide downward, the first blocked shot 6 is made to block liquid injection port 5, again vacuum pumping is carried out to fluid injection cup cavity 1, extract electrolyte unnecessary in fluid injection cup cavity 1 out (as shown in Figure 3); Now, comparatively speaking, fluid injection cup cavity 1 is negative pressure, and battery core inside is malleation, the bubble of battery core inside influxs fluid injection cup cavity 1 and discharges from upper mounted plate 2,
Step 3, after exhausting unnecessary electrolyte, the second blocked shot 7 is made to block liquid injecting mouth 4, and make the first blocked shot 6 leave liquid injection port 5, remove the vacuum state in fluid injection cup cavity 1, fluid injection cup cavity 1 is made to recover normal pressure (as shown in Figure 4), the second blocked shot 7 is made to leave liquid injecting mouth 4 again, remove shutoff, now, fluid injection cup cavity 1 inside is normal pressure, battery core is inner is negative pressure relatively, electrolyte is automatically injected battery core inside under differential pressure action, now, the dead angle bubble of battery core inside can escape into fluid injection cup cavity 1 from liquid injecting mouth 4, and discharge from upper mounted plate 2 further, so, just can discharge the bubble (as shown in Figure 5) at battery core inside and dead angle place comparatively thoroughly.
Step 4, repetition step 2 and step 3 are at least one times.
In an injection process, in fluid injection cup cavity 1, the situation of change of pressure is: malleation → negative pressure → normal pressure → normal pressure, the pressure changing of battery core inside is then: negative pressure → malleation → negative pressure → negative pressure, whole technique can be described as " type of respiration infiltration liquid injection process ", and this technique can remove battery core internal residual bubble after fluid injection completely.
In a word, the priming device of the present invention for existing lithium ion battery fluid injection principle improves, changed into by existing single fluid injection and reciprocatingly repeat fluid injection by a small margin, bubble is remained to remove battery core inner dead space, thus greatly can promote battery core fluid injection operation qualification rate, under the prerequisite not affecting overall throughput, improve the battery core quality of fluid injection operation.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned execution mode.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection range of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (8)
1. a priming device, it is characterized in that: comprise fluid injection cup cavity, upper mounted plate, bottom plate, liquid injecting mouth, liquid injection port, first blocked shot, second blocked shot, first driven unit and the second driven unit, the upper surface of described fluid injection cup cavity and lower surface respectively with fixed plate and described bottom plate close contact, described liquid injection port is arranged on fixed plate and described liquid injection port communicates with described fluid injection cup cavity, described liquid injecting mouth is positioned at the below of described bottom plate and described liquid injecting mouth communicates with described fluid injection cup cavity, described first driven unit can drive described first blocked shot to insert in described liquid injection port, described second driven unit can drive described second blocked shot to insert in described liquid injecting mouth, fixed plate is provided with the through hole communicated with described fluid injection cup cavity, the end of described through hole is connected with valve.
2. priming device according to claim 1, is characterized in that: described first driven unit is set to the first motor, and described first blocked shot is arranged on the first slide block.
3. priming device according to claim 2, it is characterized in that: described first driven unit is fixed on mounting panel, the two ends of described first driven unit are provided with guide pillar, described mounting panel is slidably connected to described guide pillar, described first slide block is fixedly installed on the end of described guide pillar, described mounting panel is also fixed on upper mounted plate by fixed leg, and the output shaft of described first driven unit is arranged near described first slide block.
4. priming device according to claim 3, is characterized in that: the top of described guide pillar is provided with fixed block, and described fixed block is positioned at the top of described first driven unit.
5. priming device according to claim 1, is characterized in that: described second driven unit comprises ball screw and the second motor, and the output shaft of described second motor is connected by belt with described ball screw.
6. priming device according to claim 5, it is characterized in that: fixed plate is provided with guide rail, described ball screw is connected with pushing block, second slide block is connected on described guide rail by sliding shoe slidably, described pushing block is positioned at the top of described sliding shoe, and described second blocked shot is arranged at the below of described second slide block.
7. priming device according to claim 6, is characterized in that: fixed plate is provided with the through hole that can pass for described second blocked shot.
8. an electrolyte filling method, is characterized in that, comprises the following steps:
Step one, blocks liquid injecting mouth with the second blocked shot, injects the electrolyte in fluid injection cup cavity, when fluid injection cup cavity arrives fluid injection station, makes the second blocked shot leave liquid injecting mouth, thus completes the storage of electrolyte in fluid injection cup cavity;
Step 2, malleation is passed in fluid injection cup cavity, make in the electrolyte press-in battery core in fluid injection cup cavity, when the intrusion of electrolyte reaches set point, liquid injection port is blocked with the first blocked shot, again vacuum pumping is carried out to described fluid injection cup cavity, electrolyte unnecessary in described fluid injection cup cavity is extracted out;
Step 3, after exhausting unnecessary electrolyte, the second blocked shot is made to block liquid injecting mouth, and make described first blocked shot leave described liquid injection port, remove the vacuum state in described fluid injection cup cavity, make described fluid injection cup cavity recover normal pressure, then make the second blocked shot leave liquid injecting mouth, electrolyte is automatically injected battery core inside under differential pressure action;
Step 4, repetition step 2 and step 3 are at least one times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510965972.9A CN105406021B (en) | 2015-12-22 | 2015-12-22 | A kind of priming device and electrolyte filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510965972.9A CN105406021B (en) | 2015-12-22 | 2015-12-22 | A kind of priming device and electrolyte filling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406021A true CN105406021A (en) | 2016-03-16 |
| CN105406021B CN105406021B (en) | 2017-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510965972.9A Expired - Fee Related CN105406021B (en) | 2015-12-22 | 2015-12-22 | A kind of priming device and electrolyte filling method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113196559A (en) * | 2018-10-05 | 2021-07-30 | 凯尊创新有限公司 | System and method for electrolyte filling and electrical connection of lithium ion batteries |
| CN117878551A (en) * | 2024-03-05 | 2024-04-12 | 广东东博智能装备股份有限公司 | Anti-overflow and anti-leakage liquid injection machine for battery |
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| CN204792473U (en) * | 2015-05-15 | 2015-11-18 | 东莞丰源锂能电池设备有限公司 | Automatic liquid machine of annotating of ultracapacitor system |
| CN205231168U (en) * | 2015-12-22 | 2016-05-11 | 东莞市骏泰精密机械有限公司 | Filling device |
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2015
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| JP2004152570A (en) * | 2002-10-30 | 2004-05-27 | Matsushita Electric Ind Co Ltd | Electrolyte injection method and device for the same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113196559A (en) * | 2018-10-05 | 2021-07-30 | 凯尊创新有限公司 | System and method for electrolyte filling and electrical connection of lithium ion batteries |
| CN117878551A (en) * | 2024-03-05 | 2024-04-12 | 广东东博智能装备股份有限公司 | Anti-overflow and anti-leakage liquid injection machine for battery |
| CN117878551B (en) * | 2024-03-05 | 2024-05-17 | 广东东博智能装备股份有限公司 | Anti-overflow and anti-leakage liquid injection machine for battery |
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| Publication number | Publication date |
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| CN105406021B (en) | 2017-10-03 |
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